/*

* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Publish & Subscribe property change observer implementation

*

*/

// INCLUDE FILES

#include "MIMPSSystemNotifierObserver.h"

#include "CIMPSSystemNotifierPubSub.h"

#include "CIMPSPropertyObserver.h"

#include "IMPSSystemNotifyDefs.h"

#include <sacls.h>

// ============================ MEMBER FUNCTIONS ===============================

// -----------------------------------------------------------------------------

// CIMPSSystemNotifierPubSub::CIMPSSystemNotifierPubSub

// C++ default constructor can NOT contain any code, that

// might leave.

// -----------------------------------------------------------------------------

//

CIMPSSystemNotifierPubSub::CIMPSSystemNotifierPubSub(

    MIMPSSystemNotifierObserver& aObserver,

    const TUid aKey

)

        : iObserver( aObserver ),

        iKey( aKey )

    {

    }

// -----------------------------------------------------------------------------

// CIMPSSystemNotifierPubSub::ConstructL

// Symbian 2nd phase constructor can leave.

// -----------------------------------------------------------------------------

//

void CIMPSSystemNotifierPubSub::ConstructL()

    {

    iPropertyObserver = CIMPSPropertyObserver::NewL( *this );

    }

// -----------------------------------------------------------------------------

// CIMPSSystemNotifierPubSub::NewL

// Two-phased constructor.

// -----------------------------------------------------------------------------

//

CIMPSSystemNotifierPubSub* CIMPSSystemNotifierPubSub::NewL(

    MIMPSSystemNotifierObserver& aObserver,

    TUid aKey )

    {

    CIMPSSystemNotifierPubSub* self =

        new( ELeave ) CIMPSSystemNotifierPubSub( aObserver, aKey );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    return self;

    }

// Destructor

CIMPSSystemNotifierPubSub::~CIMPSSystemNotifierPubSub()

    {

    delete iPropertyObserver;

    }

// -----------------------------------------------------------------------------

// CIMPSSystemNotifierPubSub::Subscribe

// (other items were commented in a header).

// -----------------------------------------------------------------------------

//

TInt CIMPSSystemNotifierPubSub::Subscribe()

    {

    TInt err( KErrNone );

    TRAP( err,

          iPropertyObserver->ObservePropertyChangeL( KUidSystemCategory, iKey.iUid ) );

    return err;

    }

// -----------------------------------------------------------------------------

// CIMPSSystemNotifierPubSub::UnSubscribe

// (other items were commented in a header).

// -----------------------------------------------------------------------------

//

void CIMPSSystemNotifierPubSub::UnSubscribe()

    {

    iPropertyObserver->CancelObserve();

    }

// -----------------------------------------------------------------------------

// CIMPSSystemNotifierPubSub::GetIntKey

// (other items were commented in a header).

// -----------------------------------------------------------------------------

//

TInt CIMPSSystemNotifierPubSub::GetIntKey( TInt& aValue )

    {

    TInt err = RProperty::Get( KUidSystemCategory, iKey.iUid, aValue );

    return err;

    }

// -----------------------------------------------------------------------------

// CIMPSSystemNotifierPubSub::HandlePropertyNotificationEventL( TUid /*aCategory*/, TUint /*aKey*/ )

//

// (other items were commented in a header).

// -----------------------------------------------------------------------------

//

void CIMPSSystemNotifierPubSub::HandlePropertyNotificationEventL( TUid /*aCategory*/, TUint /*aKey*/ )

    {

    TInt value( KErrNone );

    User::LeaveIfError( RProperty::Get( KUidSystemCategory, iKey.iUid, value ) );

    iObserver.HandleSystemNotifierEventL( iKey, value );

    }